Mechanical properties of Al-Si galvanic coating and its influence on resistance weldability of 22MnB5 steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00305368" target="_blank" >RIV/68407700:21220/16:00305368 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.368.82" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/DDF.368.82</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.368.82" target="_blank" >10.4028/www.scientific.net/DDF.368.82</a>

Result language
angličtina
Original language name
Mechanical properties of Al-Si galvanic coating and its influence on resistance weldability of 22MnB5 steel
Original language description
Increase of quality and productivity in the same time are the most important in automotive industry. Use of high-strength steel 22MnB5 allows decrease of sheet metal thickness compared to standard steel. Commonly the steel 22MnB5 is welded with laser [1]. Use of this steel for spot resistance welding is not yet fully described. Steel 22MnB5 is coated with Al-Si galvanic coating for increasing high temperature oxidation resistance [2]. During hot stamping and subsequent heat treatment diffusion layer is created between coating and steel. The thickness of this layer is strongly dependent on temperature and time of heat process [3]. The paper deals with mechanical properties (chemical composition, indentation hardness) of this diffusion layer and Al-Si coating. Different thicknesses of diffusion layers were compared and its influence on weldability was described. Thin thicknesses have negligible effect on weldability, yet large thicknesses very negatively influence the weldability.
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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